Contreras, who was dressed as Freddy Krueger, and a group of several other men arrived to a party at a home in the 2900 block of Aspen Meadow about 5 a.m. on Oct. 30, 2016, according to the affidavit.

The 25-year-old host of the party didn't recognize the men so he didn't let them in. Three of the men, including Contreras, allegedly pushed their way inside, initiating a shoving match.

San Antonio police investigate a shooting on the Northwest Side that left five people wounded Sunday morning, Oct. 30, 2016.

San Antonio police investigate a shooting on the Northwest Side that left five people wounded Sunday morning, Oct. 30, 2016.

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During the fight, one of the uninvited guests told the host to fight his brother "one on one." They fought but then the host saw Contreras, still dressed as Freddy Kruger, holding a shotgun, police said.

Contreras allegedly fired, striking not only the host, but four other people as well. He and several other uninvited guests then fled the scene, authorities said.

Paramedics transported three men to University Hospital and another man at Baptist Medical Center in downtown San Antonio. A female victim drove herself to Christus Santa Rosa Hospital but crashed on the way there, police said.

There were no breaks in the case until the host reportedly identified Contreras in a photo line up. The affidavit didn't specify how police developed Contreras as a suspect.

A second witness identified him as well, police said.

A judge signed a warrant for Contreras's arrest on August 9 and was finally executed almost one year after the shooting.

Contreras was only charged in connection to allegedly shooting the host, but he may face further charges.